It is easy to inflate and can be used as a sleeping pillow but I found it is also very useful as a back pillow when flying. It’s compactness makes it great for travel when space is an issue. I gave highly recommended it to fellow travellers.
I have found this to be a reliable and good piece of equipment. I use a T-shirt on the outside to stop it from slipping off the mat and it works a treat. Lightweight and comfortable. Would highly recommend.